The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 1977
Filed:
Sep. 05, 1975
Applicant:
Inventor:
Robert Milton Kibby, Richmond, VA (US);
Assignee:
Reynolds Metals Company, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
75 1 / ; 75 6 / ;
Abstract
A carbothermic process for the production of aluminum contaminated with no more than about 10 weight percent of aluminum carbide is disclosed which involves charging alumina values and carbon values into a furnace and subjecting only a minor portion of said charge at any given time of an open arc so as to heat the reagents to reaction temperture. The various vapors which form pass through the charge where they undergo additional reaction. The aluminum formed flows over the charge which is maintained at a temperature lower than reaction temperature, so as to obtain aluminum contaminated with no more than about 10 weight percent of aluminum carbide.